Systematics of the SU(3) Baryon Spectra and Deformed Oscillator Quark Model
Systematics of the SU(3) Baryon Spectra and Deformed Oscillator Quark Model
复制标题
SU(3)重子谱和变形振子夸克模型的系统学
DOI：
10.1143/ptp.101.1271
复制
发表时间：
1999
影响因子：
--
通讯作者：
A. Hosaka
中科院分区：
文献类型：
--
作者：
M. Takayama;H. Toki;A. Hosaka
我们研究了实验上已知的所有SU（3）重子态，并在变形振子夸克（DOQ）模型的方案中对它们进行了识别。夸克禁闭和手征对称性破缺是量子色动力学中最重要的非微扰现象，DOQ模型是由这两种现象激发的。我们发现大多数重子态都符合DOQ方案。然后，我们试图研究微观起源的DOQ模型使用的模型，三个组成夸克与两体相互作用。然而，我们发现，这样一个简单的处理是不能够产生大的变形效果。我们认为，胶子动力学所造成的禁闭是非常重要的变形重子。
We study all the SU(3) baryonic states known experimentally and identify them in the scheme of the deformed oscillator quark (DOQ) model. The DOQ model is motivated by confinement of quarks and chiral symmetry breaking, which are the most important nonperturbative phenomena of QCD. We find most of the baryonic states fall into the DOQ scheme. We then attempt to study the microscopic origin of the DOQ model using a model of three constituent quarks with two-body interactions. We find, however, that such a simple treatment is not able to produce the large deformation effect. We argue then that the confinement caused by the gluon dynamics is essentially important for the deformed baryons.